Buckle



(No Model.)

P. ARMSTRONG.

BUQKLB. No. 287,081. V Patented Oct. 23, 1888.

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UNTTE STATES EETEE.

yATENTV BUCKLE.Y

SPECIFICATION forming part of Letters Patent No. 287,081, dated October 23, 1883,

Application led June 21, 1883. (No model.)

and with these ends in view my invention consists of the peculiarities of construction hereinafter fully described and specifically claimed.

To enable those skilled to fully understand my invention, I will proceed to describe the construction and operation of the same, referring by letters to the accompanying drawings, in which-.-

Figure 1 is a plan view of abuckle embodying my invention, the means for attachment being unformed. Fig. 2 is a longitudinal section taken at the line x'x of Fig. l, Fig. 8, a transverse section taken at line y y of Fig. I. Fig. 4, a longitudinal section of the frameblank, and Fig. 5' a plan view of the blank from which the cylindrical clamping-j aw Iis formed.

Similar letters denote like parts in the several figures of the drawings.

A is the frame-blank, which is formed of sheet metal, with web-slats a a, which are made by cutting the metal and turning up, as seen at Z) b, Fig. 4. Ears B B are formed on the sides of the frame, and turned up at right angles, as clearly represented, forming a support and shield to the upturned ends e c of a separate strip of metal, C, which is bent, as shown at Fig. 3, and confined in place by bending down the ends b I), as most clearly shown at Fig. 2. The ends c c are formed with bearings or sockets, d d, to receive the pivot ends e ofthe clamping cylindrical jaw D, which, being formed by bending the blank seen at Fig. 5, throws the pivots con one side, as clearly seen at Figs. 2 and 3, thus providing for an eccentric movement lto secure the proper bite against the web interposed between the said jaw and the frame. Suitable projections or barbs, f, are formed in the lower circumference of the jaw D by punching, or in any other suitable manner.

From the construction illustrated and described it will be seen the central bar of the frame is greatly strengthened by the introduction of the metallic strip O, and that the upturned ends c of the latter form a much more substantial bearing for the pivots of the cylindrical jaw D, than the ears B used in the usual way.

The jaw D, as will be seen, is composed of a single piece, bent orv otherwise formed into a cylinder, and is devoid of any projecting arm or lever for operating the same, and is provided with suitable barbs or points to facilitate the bite upon the interposed web.

I am aware, of course, that jaws pivoted eccentrically and provided with operating-levers or extensions have been made; but such structures involve the use o i' comparatively large amounts of material, while with my improved jaw a minimum amount of material only is necessary.

By the employment of the cylindrical j aw D, the bite on the web is produced by pulling the same under thc jaw, which being rotated cccentrically, quickly and rmlyl grasps the web, and in the act of releasing the same a reverse pull of the web is all that is necessary, which is a much more desirable method than the lever movement necessary in buckles as at present constructed.

I havefdescribed and shown the independent strengthening-strip C, and prefer to use it as described; but it will be understood thatin- D, consisting of a simple metallic cylinder provided with biting-barbs, Substantially as set forth.

2. In combination wit-11 the frame A, pro- 5 vided Wit-h Web-seats a a and endsb b, the strengthening-strip C, provi ded with upturned ears or ends c c, the ends b b being turned down7 as describedj to @Online the strengthening-strip in place, substantially as set forth. Io A3. The cylindrical jaw D7 made of a Single pieee of sheet metal, provided with pivots e e and barbsf, substantially as shown and described. r

In testimony whereof l have hereunto set my hand in the presence of two subscribing 15 Witnesses.

FRANK ARMSTRONG.

Vitn esses FJI. STAPLES, JULIA A. FAIRCHILD. 

